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Returns true if any values exist, false if empty. Works for booleans, functions, numbers, strings, nulls, objects and arrays.

Frequent default values

Remove duplicate values from an array. Fastest ES5 implementation.

Returns an array with only the unique values from the first array, by excluding all values from additional arrays using strict equality for comparisons.

Create an array of unique values, in order, from the input arrays

a map from arrays of values to values

Create an array with values that are present in the first input array but not additional ones

Find [nd-]array min/max values

Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

Pick an array of values out of an object.

Combines a list of arrays, returning a single array with unique values, using strict equality for comparisons.

Type checking for JSON values

Deep-merge the values of one object structure into another

Transforms nested values of complex objects

Set an array of unique values as the property of an object. Supports setting deeply nested properties using using object-paths/dot notation.

Get unique values of an array. Really, like deeply unique.

Reduce an array to unique values, optionally into a separate array.

Copy values from x into y.

Array#filter() with also detecting indexes of filtered values

Wrap and validate optional values